28.08.2013 Views

download PDF - Faculdade de Desporto da Universidade do Porto

download PDF - Faculdade de Desporto da Universidade do Porto

download PDF - Faculdade de Desporto da Universidade do Porto

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Glicocorticói<strong>de</strong>s e síndrome metabólica:<br />

aspectos favoráveis <strong>do</strong> exercício físico nesta patofisiologia<br />

J. Rodrigo Pauli<br />

Luciana Souza<br />

Gustavo Rogatto<br />

Ricar<strong>do</strong> Gomes<br />

Eliete Luciano<br />

RESUMO<br />

A síndrome metabólica tem diversas similari<strong>da</strong><strong>de</strong>s com a síndrome<br />

<strong>de</strong> Cushing (intolerância à glicose, resistência à insulina,<br />

hipertensão, dislipi<strong>de</strong>mia, obesi<strong>da</strong><strong>de</strong> central), sugerin<strong>do</strong><br />

que anormali<strong>da</strong><strong>de</strong>s no metabolismo <strong>do</strong>s glicocorticói<strong>de</strong>s estão<br />

associa<strong>da</strong>s com a síndrome metabólica. Por outro la<strong>do</strong>, a prática<br />

regular <strong>de</strong> ativi<strong>da</strong><strong>de</strong> física tem si<strong>do</strong> recomen<strong>da</strong><strong>da</strong> para a prevenção<br />

e a reabilitação <strong>de</strong> <strong>do</strong>enças cardiovasculares e outras<br />

<strong>do</strong>enças crônico-<strong>de</strong>generativas. Estu<strong>do</strong>s epi<strong>de</strong>miológicos têm<br />

<strong>de</strong>monstra<strong>do</strong> relação direta entre inativi<strong>da</strong><strong>de</strong> física e presença<br />

<strong>de</strong> múltiplos fatores <strong>de</strong> risco como os encontra<strong>do</strong>s na síndrome<br />

metabólica. Os efeitos benéficos <strong>do</strong> exercício físico têm si<strong>do</strong><br />

<strong>de</strong>monstra<strong>do</strong>s na prevenção e no tratamento <strong>da</strong> hipertensão<br />

arterial, na resistência à insulina, no diabetes, na dislipi<strong>de</strong>mia e<br />

na obesi<strong>da</strong><strong>de</strong>. Nesse contexto, esta revisão tem o intuito <strong>de</strong><br />

discutir os efeitos metabólicos <strong>do</strong>s glicocorticói<strong>de</strong>s e a associação<br />

<strong>da</strong> ação <strong>de</strong>stes esterói<strong>de</strong>s com as características <strong>da</strong> síndrome<br />

metabólica. Além disso, vamos explorar os mecanismos<br />

pelos quais a ativi<strong>da</strong><strong>de</strong> física po<strong>de</strong> favorecer o metabolismo <strong>do</strong>s<br />

usuários <strong>de</strong> glicocorticói<strong>de</strong>s.<br />

Palavras-chave: glicocorticói<strong>de</strong>s, síndrome metabólica, exercício<br />

físico.<br />

Universi<strong>da</strong><strong>de</strong> Estadual <strong>de</strong> Campinas<br />

<strong>Facul<strong>da</strong><strong>de</strong></strong> <strong>de</strong> Ciências Médicas<br />

Laboratório <strong>de</strong> Sinalização Celular<br />

Campinas, Brasil<br />

ABSTRACT<br />

Metabolic syndrome and glucocorticoid: Favorable aspects<br />

of physical exercise on this pathophysiology.<br />

The metabolic syndrome has several similarities with Cushing’s syndrome<br />

(impaired glucose tolerance, insulin resistance, hypertension, dyslipi<strong>de</strong>mia,<br />

central obesity) suggesting that abnormalities in the glucocorticoid<br />

metabolism have a link with the metabolic syndrome. On the<br />

other hand, regular physical activity provi<strong>de</strong>s several health benefits<br />

helping in prevention and rehabilitation of cardiovascular and other<br />

chronic diseases. Epi<strong>de</strong>miological studies have been <strong>de</strong>monstrating a<br />

direct relationship between physical inactivity and the multiple risk factors<br />

such as those found in the metabolic syndrome. Otherwise, it has<br />

been <strong>de</strong>monstrated the physical exercise benefit to prevent and treat<br />

arterial hypertension, insulin resistance, diabetes, dislipi<strong>de</strong>my, and obesity.<br />

This review will discuss the metabolic effects in the context of glucocorticoid<br />

metabolism and establish the association of glucocorticoid<br />

action with the features of the metabolic syndrome, specially obesity and<br />

insulin resistance. Moreover, we will explore how physical activity promotes<br />

favorable physiologic a<strong>da</strong>ptations improving quality of life in the<br />

abnormalities metabolic association with the excess of glucocorticoid.<br />

Keys Words: glucocorticoid, metabolic syndrome and physical exercise.<br />

Rev Port Cien Desp 6(2) 217–228 217

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!